Clutch -coupling



(No Model.) 3 Sheet's-Sheet 1. M. HAAS.

CLUTCH COUPLING. No. 310,996. Patented Jan. 20, 1885.

N. PETERS. Phblc-Lllhugrspher. Wnshingkvk D. C.

3 Shets-Sheet 2.

MQHAAS.

CLUTCH COUPLING.

(No Model.)

Patented Jan. 20, 1885.

iiillii MI. Hllllli haw N. PETERS. Phuwulha n her. Washingwm n.c.

UNITED STATE Tricia PATENT CLUTCH-COUPLING.

SPECIFICATION forming part of Letters Patent No. 310,996, dated January 20, 1885 Applicnti n filed IccemLcr 29, 181-3. (No model.) 7 I f0 all whom it may concern:

Be it known that I, MATHIAS HAAS, of the city of St. GeorgemGrand Duchy of Baden, German Empire, have invented certain new and useful Improvements in Impact Coupling Mechanism or Clutches, of which .the following is a specification.

This invention has relation to clutcli-couplings for machinery operated by a suitable motor; and it consists, substantially, in the parts as constructed, and in the particular combinations to be hereinafter distinctly described, and pointed out in the claims.

In former machines most nearly allied to my present invention the operation of throwing the clutch into gear has been attended with serious disadvantages and injury both to the motor itself and to the intermediate mechanism dependent upon such motor.

My invention was designed for the purpose of overcoming these defects, as will be seen upon referenceto the accompanying d rawi'ngs, in which- 1 Figure 1 is the unshipping-clutch in full size; Fig. 2, transverse section on line E F of Fig. 1; Figs. 3, 4, and 5, details of the rings of the clutch; Figs. 6 and 7, details of the position of the carriers k opposite the shoulders or noses'm m; Fig. 8, front View of the planingmachine and the coupling; Fig. 9, plan of the same; Fig. 10, side view thereof; Fig. 11, side view of the mechanism for reversing entirely without shock or concussion of machines with rack starting-gear; Fig. 12, transverse section of Fig. 11 on AB; Fig. 13, elevation of the mechanism unshipping both clutches by means of one eccentric and without shifting the belts; Figs. 14 and 14", plans of Fig. 13.

a and b are shafts for transmitting the motion, the part to be coupled and uncoupled being the toothed wheel 2'.

On shafts a and b, respectively, there is a sliding sleeve, c,'which participates in the rotation of the shaft. A second sleeve, d, is likewise mounted on a and 11, respectively, but is quite loose. The sleeve 0, as well as sleeve d, carry on their sides'which are turned to-' ward one another clutchteeth e, by means of which sleeve d is also carried round when sleeve 0 is suitably shifted4 The sliding of 'ciently strong to carry the part round.

sleeve 0 can be caused in any convenient man ner. connected with the reversing-gear h of the planingmachine by means of a fork,f, the slide 9, and an engaging pin or stud, Z, Figs. 8, 9, and 10. In ordinary applications of this clutchgearing the sliding of the sleeve 0 may be effected by means of a hand-lever or of a screw-spindle. The part i, which is to be coupled, is put into engagement with the sliding sleeve 0 by two or more carriers, 70 k, as shown, which slide against suitable shoulders or noses, m m, when the said sleeve is shifted toward sleeve (1. (See Figs. 1 and 9.) The carriers It k are guided in the loose sleeve d, Fig. 1. The periphery of sleeve d is eccentricin shape, and upon the same slides lightly a steel spring, a so-called brake-carrier, n,

which is kept in position by a second spring, I

0, Figs. 1, 3, 8. and 9.

The operation of the construction as a whole is as follows: Vhen sleeve 0 is shifted, the teeth 6 6 gear into one another, and the loose sleeve d is carried with the former. At the same time, however, the carriers is k move forward, so that when sleeve d rotates they impinge against the shoulders at m, and are compelled to carry the parti round with them. Before, however, this takes place, the eccentric periphery d slides along under the brake spring it till the peripheral friction is suffi- (Sec Figs. 1, S, and 9.) The noses or shoulders m m, Figs. 3 and 9, are so placed that after this brake action the carriers can come into engagement. Then, however, the parts 0, k, and or transmit the whole power. The brakespring 12. no longer serves to transmit power. If the carriers is could directly impinge upon the shoulders at m, the coupling would engage It is here assumed that the sleeve 0 is with a concussion, while it is obvious that by a reason of the employment of the brake-spring the engagement takes place without shock. It might occur that when the sleeves are slid into engagement the points of the carrier is k are in, such position relatively to the shoulders m m as Figs. 6 and 7 show; Then the brake-spring could not come into operation, as the time would not be sufficient therefor,and

the engagement would then be effected with a ICO springs, O O.

concussion. To avoid this the eccentric periphery of d has at p p the shape shown in Fi g. 4. The relative position of rest of the shoulders m m with respect to the carriers 70 (shown in Fig. 6) is rendered impossible, as the brakespring a, above referred to, (then in tension,) imparts a slight rotation to the part a by the inclined planes 1) 1). Moreover, to prevent that, when sleeve 0 is slid into engagement the points of its teeth 6 should come against those of the teeth of (.3, so that the whole power be transmitted by the points of the teeth only. The mechanism is so arranged that the engaging-tooth l of a lever, 72., does not directly press against the slide 9, but first against a short coiled spring, q q, fixed on the slide g, Figs. 8, 9, 10. This avoids the shock, which, however, does not readily occur in planing machines.

Figs. 11 and 12 show reversing-gear for planing-machines, as well as other machines fitted with rack starting-gear.

To efi'ect the reversing of a planing-machine entirely without shock and elastically, the fol lowing arrangen'lent is used: The rack A, operating the planing table or slide, is not rigidly connected with the latter, but admits of a certain amount of lateral play. To this end the rack is shaped somewhat like a sled, as shown in Fig. 12, but is guided in the ends only of the planing-table 13, while the central part of the rack is free. Upon this part a strong springf), fixed upon the'planing-table, presses. Theliniitation of the relative movement of the rack is effected in any convenient manner, in the present case by two abutting In every reversal of the mo tion, which is effected by one or the other of the cog-wheels E, the rack will slide to some extent first before the planing-table begins to move. It is obvious that in this manner all concussion is avoided. As already stated, this arrangement may be employed in all machines which have rack startinggear.

The arrangement for throwing both couplings out of gear at the same time by means of one eccentric is represented by Figs. 14 and 14". The two slides which are connected with the shipping-gear of the coupling are connected with a cross-bar common to both. By an eccentric, t, the cross-bar S can be shifted. Both slides g {1 are therefore simultaneously in motion, and cause both clutches to run loose, and consequently the planingniachine stops, although the driving-shafts a and I) continue their motion, Figs. 18 and 14". The eccentric t is mounted on a small axle, o, to which in turn a handle, a, is attached, by which it can be rotated.

By the described arrangement the planing machine may be put in or out of gear instantaneously. It is,generally speaking, a value able property of this entire coupling that it entirely prevents dead running of theplaning-maehine, and admits its being instantaneously reversed.

Having now described my invention, I wish it to be understood that I claim and desire to protect by Letters Patent 1. In a clutch-coupling for motors, the combination of sliding toothed sleeve 0 with the loose eccentric toothed sleeve (2, brake-spring n, and carriers is 76, substantially as described and illustrated.

2. The combination, with the sleeve 0, of the fork f, the slide 5/, and an engaging pin or stud, Z, substantially as described.

3. The combination, with the planing-table B, of the rack A, free to slide a regulated dis tance, spring D, fixed to the table B, and abutting-pins O 0, whereby may be effected a reversal,substantiall y as described and shown.

4. The combination, with the cross-bar S, of the slides g g and an eccentric, whereby cross-bar S, and consequently the slides g y, will beset in motion, eitecting the unshipping of both' clutches and the consequent stopping of the machine, notwithstai'lding that both driving-shafts a and 6 continue their motion, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

Mannheim, June 13, 1888.

MATHIAS HAAS.

Witnesses:

FRANZ MULLER, F. ZEUGTERT. 

